Siemens EAA/EB 91 = 6 AL 5 Vacuum tube Double diode 420 V 9 mA Number of pins: 7 Base: Miniature Content 1 pc(s)

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Despite vacuum tubes, valve bases and related accessories haven't been mass-produced for about 35 years, they are, and will, be used in high-quality amplifiers, music gear (old and new), testing equip...